favicon_util.cc | Explore in Territory

// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "components/favicon_base/favicon_util.h"

#include <stddef.h>

#include <cmath>

#include "base/ranges/algorithm.h"
#include "base/trace_event/trace_event.h"
#include "build/build_config.h"
#include "components/favicon_base/favicon_types.h"
#include "components/favicon_base/select_favicon_frames.h"
#include "skia/ext/image_operations.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "third_party/skia/include/core/SkCanvas.h"
#include "third_party/skia/include/core/SkImage.h"
#include "ui/base/resource/resource_scale_factor.h"
#include "ui/gfx/codec/png_codec.h"
#include "ui/gfx/favicon_size.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/image/image_png_rep.h"
#include "ui/gfx/image/image_skia.h"
#include "ui/gfx/image/image_skia_rep.h"

#if BUILDFLAG(IS_MAC)
#include "base/mac/mac_util.h"
#endif  // BUILDFLAG(IS_MAC)

namespace favicon_base {
namespace {

// Creates image reps of DIP size |favicon_size| for the subset of
// |favicon_scales| for which the image reps can be created without resizing
// or decoding the bitmap data.
std::vector<gfx::ImagePNGRep> SelectFaviconFramesFromPNGsWithoutResizing(
    const std::vector<favicon_base::FaviconRawBitmapResult>& png_data,
    const std::vector<float>& favicon_scales,
    int favicon_size) { … }

// Returns a resampled bitmap of |desired_size| x |desired_size| by resampling
// the best bitmap out of |input_bitmaps|.
// ResizeBitmapByDownsamplingIfPossible() is similar to SelectFaviconFrames()
// but it operates on bitmaps which have already been resampled via
// SelectFaviconFrames().
SkBitmap ResizeBitmapByDownsamplingIfPossible(
    const std::vector<SkBitmap>& input_bitmaps,
    int desired_size) { … }

}  // namespace

std::vector<float> GetFaviconScales() { … }

gfx::Image SelectFaviconFramesFromPNGs(
    const std::vector<favicon_base::FaviconRawBitmapResult>& png_data,
    const std::vector<float>& favicon_scales,
    int favicon_size) { … }

favicon_base::FaviconRawBitmapResult ResizeFaviconBitmapResult(
    int desired_size_in_pixel,
    const std::vector<favicon_base::FaviconRawBitmapResult>&
        favicon_bitmap_results) { … }

}  // namespace favicon_base
chromium/components/favicon_base/favicon_util.cc
